Capacity
Megabolts used for ground control in underground mines are typically 48 tonnes to 87 tonnes (nominal capacity). Megabolts can be designed to meet the specific requirements of the ground support application.
Megabolts can be supplied in any length required, as they are capable of being coiled to less than 1.8m diameter (for transport underground).
| Standard Megabolts | ||||||
| Model | Nominal Capacity | Bolt Diameter (nominal) | Hole Diameter (approximate) | |||
| tonne | ton | mm | in | mm | in | |
| MB7RU- | 48 | 51 | 27 | 1 1/16 | 32 | 1 1/4 |
| MB7RG- | 48 | 51 | 30 | 1 1/8 | 35 | 1 3/8 |
| MB9RU- | 60 | 66 | 33 | 1 1/4 | 40 | 1 1/2 |
| MB9RG- | 60 | 66 | 33 | 1 1/4 | 40 | 1 1/2 |
| MB12RG- | 80 | 88 | 39 | 1 1/2 | 45 | 1 3/4 |
| MB13RU- | 87 | 95 | 39 | 1 1/2 | 45 | 1 3/4 |